Box Drive is an alternative to Box Sync (BS is like Dropbox). Your files are not stored locally, but rather streamed from the cloud. I use git, but for years I've been locating the local repo copies in either Box Sync folders or Dropbox folders to have constant backup.

I started experiencing problems when I switched to Box Drive. When I open an RStudio project, Box starts complaining about renaming conflicting files like pcs and sources, cts, presentation, console06, notebooks, etc. All files in the hidden .Rproj.user folder.